This brilliant, clear blue topaz of this estate ring measures approximately 3.3 carats. This blue topaz is a deep Caribbean blue and is oval shaped. This clear blue topaz has a beautiful faceted cut. This blue topaz is set horizontally between two rows of 8 round diamonds. This shank is a wide 18kt yellow gold band, tested, not marked. This ring has a designer mark and the initials "CB". This estate ring could easily be resized. This ring measures 9/16" in front and 1/4" at the back of the shank. This Caribbean blue topaz is oval shaped and measures 9.7mm x 7.9mm x 5.9mm, appx. 3.3ct tw. The surrounding diamonds weigh approximately 0.16 ct tw